Peer-Reviewed Publications (200)

2024 (13)¶

• Structural Complexities in Sodium Ion Conductive Antiperovskite Revealed by Cryogenic TEM

• Atomic-scale identification of active sites of oxygen reduction nanocatalysts

• Direct Measurement of the Thermal Expansion Coefficient of Epitaxial WSe₂ by 4DSTEM

• Reversible phase transformations between Pb nanocrystals and a viscous liquid-like phase

• Chemical Environment and Structural Variations in High Entropy Oxide Thin Film Probed with Electron Microscopy

• Ion Implantation-Induced Plastic Phenomena in Metallic Alloys

• Direct Imaging of the Crystalline Domains and Their Orientation in the PS-b-PEO Block Copolymer with 4DSTEM

• Electronic structure along Sm₂Co₃Ge₅ twin boundaries

• Ion Implantation-Induced Plastic Phenomena in Metallic Alloys

• How the AI-assisted discovery and synthesis of a ternary oxide highlights capability gaps in materials science

• Rejuvenation as the origin of planar defects in the CrCoNi medium entropy alloy

• A method for crystallographic mapping of an alpha‐beta titanium alloy with nanometre resolution using scanning precession electron diffraction and open‐source software libraries

• Uneven Strain Distribution Induces Consecutive Dislocation Slipping, Plane Gliding, and Subsequent Detwinning of Penta-Twinned Nanoparticles

2023 (30)¶

• Design of Electrostatic Aberration Correctors for Scanning Transmission Electron Microscopy

• Solving complex nanostructures with ptychographic atomic electron tomography

• Enabling Oxidation Protection and Carrier-Type Switching for Bismuth Telluride Nanoribbons via in Situ Organic Molecule Coating

• Energy Funneling in a Noninteger Two-Dimensional Perovskite

• Atomic-scale probing of short-range order and its impact on electrochemical properties in cation-disordered oxide cathodes

• Analysis of strain and defects in Tellurium-{WSe}₂ Moir’{e} heterostructures using scanning nanodiffraction

• Relativistic ultrafast electron diffraction at high repetition rates

• Encoding multistate charge order and chirality in endotaxial heterostructures

• Role of structural defects in mediating disordering processes at irradiated epitaxial Fe₃O₄ / Cr₂O₃ interfaces

• Measurement of Atomic Modulation Direction Using the Azimuthal Variation of First-Order Laue Zone Electron Diffraction

• Quantitative scanning transmission electron microscopy for materials science: imaging, diffraction, spectroscopy, & tomography

• Mapping nanoscale electrostatic field fluctuations around graphene dislocation cores using 4DSTEM

• Observing ion diffusion and reciprocating hopping motion in water

• The emergence of three-dimensional chiral domain walls in polar vortices

• Uncovering polar vortex structures by inversion of multiple scattering with a stacked Bloch wave model

• Multimodal Characterization of Crystal Structure and Formation in Rubrene Thin Films Reveals Erasure of Orientational Discontinuities

• Resolution of Virtual Depth Sectioning from Four-Dimensional Scanning Transmission Electron Microscopy

• Atomic motifs govern the decoration of grain boundaries by interstitial solutes

• Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions

• Defect contrast with 4DSTEM: Understanding crystalline order with virtual detectors and beam modification

• The mechanism of twin thickening and the elastic strain state of TWIP steel nanotwins

• Rotational and dilational reconstruction in transition Metal dichalcogenide moiré bilayers

• Multislice electron tomography using four-dimensional scanning transmission electron microscopy

• 60° and 120° domain walls in epitaxial BaTiO₃(111)/Co multiferroic heterostructures

• Competition between exchange and magnetostatic energies in domain pattern transfer from BaTiO₃(111) to a Ni thin film

• Robust design of semi-automated clustering models for 4DSTEM datasets

• 4DSTEM reveals crystallization mechanisms of organic semiconductors on graphene

• Formation of hierarchically ordered structures in conductive polymers to enhance the performances of lithium-ion batteries

• Spatially resolved structural order in low-temperature liquid electrolyte

• Characterization of the atomic-level structure of γ-alumina and (111) Pt/γ-alumina interfaces

2022 (19)¶

• Disentangling multiple scattering with deep learning: application to strain mapping from electron diffraction patterns

• Strong structural and electronic coupling in metavalent PbS moir’e superlattices

• Accurate quantification of lattice temperature dynamics from ultrafast electron diffraction of single-crystal films using dynamical scattering simulations

• Analysis of Interpretable Data Representations for 4DSTEM Using Unsupervised Learning

• Flexible CO₂ Sensor Architecture with Selective Nitrogen Functionalities by One-Step Laser-Induced Conversion of Versatile Organic Ink

• Deep learning for electron and scanning probe microscopy: From materials design to atomic fabrication

• Direct strain correlations at the single-atom level in three-dimensional core-shell interface structures

• Ultrasensitive Sub-monolayer Palladium Induced Chirality Switching and Topological Evolution of Skyrmions

• A three-dimensional reconstruction algorithm for scanning transmission electron microscopy data from a single sample orientation

• Automated Crystal orientation mapping in py4DSTEM using sparse correlation matching

• Ion complexation waves emerge at the curved interfaces of layered minerals

• Seeing structural evolution of organic molecular nano-crystallites using 4DSCED

• Correlative image learning of chemo-mechanics in phase-transforming solids

• Mapping 1D Confined Electromagnetic Edge States in 2D Monolayer Semiconducting MoS₂ Using 4DSTEM

• Cryogenic 4DSTEM analysis of an amorphous-crystalline polymer blend: combined nanocrystalline and amorphous phase mapping

• Reversible writing/deleting of magnetic skyrmions through hydrogen adsorption/desorption

• Machine learning in scanning transmission electron microscopy

• Stabilization and control of persistent current magnets using variable inductance

• Visualizing Grain Statistics in MOCVD WSe₂ through Four-Dimensional Scanning Transmission Electron Microscopy

2021 (24)¶

• Imaging atomic-scale chemistry from fused multi-modal electron microscopy

• Correlative analysis of structure and chemistry of Li_xFePO₄ platelets using 4DSTEM and x-ray ptychography

• A Fast Algorithm for Scanning Transmission Electron Microscopy Imaging and 4DSTEM Diffraction Simulations

• Prismatic 2.0 - Simulation Software for STEM and HRTEM

• Simultaneous Successive Twinning Captured by Atomic Electron Tomography

• Atomic scale crystal field mapping of polar vortices in oxide superlattices

• Real-Time Interactive 4DSTEM Phase-Contrast Imaging From Electron Event Representation Data

• Electric-Field Control of Chirality

• Switching between Magnetic Bloch and Néel Domain Walls with Anisotropy Modulations

• Nanoscale characterization of crystalline and amorphous phases in silicon oxycarbide ceramics using 4DSTEM

• Theory and application of the vector pair correlation function for real-space crystallographic analysis of order/disorder correlations from STEM images

• Crystallization by Amorphous Particle Attachment: On the Evolution of Texture

• Fast Grain Mapping with Sub-Nanometer Resolution Using 4DSTEM with Grain Classification by Principal Component Analysis and Non-Negative Matrix Factorization

• Deep Learning Segmentation of Complex Features in Atomic-Resolution Phase-Contrast Transmission Electron Microscopy Images

• 4DSTEM of beam-sensitive Materials

• Percolation of Ion-Irradiation-Induced Disorder in Complex Oxide Interfaces

• Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix

• py4DSTEM: A Software Package for 4DSTEM Data Analysis

• The chain of chirality transfer in tellurium nanocrystals

• Extreme mixing in nanoscale transition metal alloys

• Strain fields in twisted bilayer graphene

• Observation of Hydrogen-Induced Dzyaloshinskii-Moriya Interaction and Reversible Switching of Magnetic Chirality

• Multibeam Electron Diffraction

• Local Lattice Deformation of Tellurene Grain Boundaries by Four-Dimensional Electron Microscopy

• Intrinsic helical twist and chirality in ultrathin tellurium nanowires

2020 (16)¶

• Towards data-driven next-generation transmission electron microscopy

• 1D to 2D Transition in Tellurium Observed by Four-Dimensional Electron Microscopy

• Origins of the transformability of nickel-titanium shape memory alloys

• Orientation and morphology of Pt nanoparticles in γ-alumina processed via ion implantation and thermal annealing

• Hybrid nanocapsules for in situ TEM imaging of gas evolution reactions in confined liquids

• Creation of skyrmions in van der Waals ferromagnet Fe₃GeTe₂ on (Co/Pd)_n superlattice

• Tilted fluctuation electron microscopy

• Highly Active Rutile TiO₂ Nanocrystalline Photocatalysts

• Short-range order and its impact on the CrCoNi medium-entropy alloy

• Tuning the Properties of Zero-Field Room Temperature Ferromagnetic Skyrmions by Interlayer Exchange Coupling

• Atomic structures determined from digitally defined nanocrystalline regions

• Structural Implications of Interfacial Hydrogen Bonding in Hydrated Wyoming-Montmorillonite Clay

• Patterned Probes for High Precision 4DSTEM Bragg Measurements

• Design and Synthesis of Multigrain Nanocrystals via Geometric Misfit Strain

• Linear-scaling algorithm for rapid computation of inelastic transitions in the presence of multiple electron scattering

• A multiple scattering algorithm for 3D phase contrast AET

2019 (20)¶

• Functional Materials Under Stress: In Situ TEM Observations of Structural Evolution

• Real time imaging of two-dimensional iron oxide spherulite nanostructure formation

• The Materials Research Platform: Defining the Requirements from User Stories

• Hierarchically-structured large superelastic deformation in ferroelastic-ferroelectrics

• Direct imaging of short-range order and its relationship to deformation in Ti₆Al

• Nanoscale stacking-fault-assisted room temperature plasticity in flash-sintered TiO₂

• Nanoscale oxygen defect gradients in UO_2+x surfaces

• Simultaneous Identification of Low and High Atomic Number Atoms in Monolayer 2D Materials Using 4D Scanning Transmission Electron Microscopy

• Formation of two-dimensional transition metal oxide nanosheets with nanoparticles as intermediates

• Observing crystal nucleation in four dimensions using atomic electron tomography

• 4DSTEM: From scanning nanodiffraction to ptychography and beyond

• Interplay between Short‐and Long‐Ranged Forces Leading to the Formation of Ag Nanoparticle Superlattice

• Dynamic deformability of individual PbSe nanocrystals during superlattice phase transitions

• Diffraction imaging of nanocrystalline structures in organic semiconductor molecular thin films

• Direct measurement of nanostructural change during in situ deformation of a bulk metallic glass

• Observation of room-temperature polar skyrmions

• Atomic electrostatic maps of 1D channels in 2D semiconductors using 4D scanning transmission electron microscopy

• Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries

• Resolving the Morphology of Peptoid Vesicles at the One Nanometer Length-Scale Using Cryogenic Electron Microscopy

• Nanoscale mosaicity revealed in peptide microcrystals by scanning electron nanodiffraction

2018 (14)¶

• Interpretable and efficient interferometric contrast in scanning transmission electron microscopy with a diffraction grating beamsplitter

• Structure retrieval at atomic resolution in the presence of multiple scattering of the electron probe

• Segregation-Induced Nanofaceting Transition at an Asymmetric Tilt Grain Boundary in Copper

• ScienceSearch: Enabling Search through Automatic Metadata Generation

• Subsampled STEM-ptychography

• Imaging Unstained Synthetic Polymer Crystals and Defects on Atomic Length Scales Using Cryogenic Electron Microscopy

• Dynamics of Nanoscale Dendrite Formation in Solution Growth Revealed Through in Situ Liquid Cell Electron Microscopy

• Probing Light Atoms at Subnanometer Resolution: Realization of Scanning Transmission Electron Microscope Holography

• Effect of composition on the structure of lithium- and manganese-rich transition metal oxides

• Towards bend-contour-free dislocation imaging via diffraction contrast STEM

• Experimental Evidence of Chiral Ferrimagnetism in Amorphous GdCo Films

• Local nanoscale strain mapping of a metallic glass during in situ testing

• Multiscale analysis of nanoindentation-induced defect structures in gum metal

• Determination of the structural phase and octahedral rotation angle in halide perovskites

2017 (16)¶

• A streaming multi-GPU implementation of image simulation algorithms for STEM

• In situ nanobeam electron diffraction strain mapping of planar slip in stainless steel

• A fast image simulation algorithm for STEM

• Formation of Oxygen Radical Sites on MoVNbTeOx by Cooperative Electron Redistribution

• Dynamics of Symmetry-Breaking Stacking Boundaries in Bilayer MoS₂

• Near-concentric Fabry-Pérot cavity for continuous-wave laser control of electron waves

• Low Temperature Solid-State Wetting and Formation of Nanowelds in Silver Nanowires

• The effect of film thickness on Curie temperature distribution and magnetization reversal mechanism for granular L1₀ FePt films

• Out-of-plane chiral domain wall spin-structures in ultrathin in-plane magnets

• Multi-pass transmission electron microscopy

• Large polarization gradients and temperature-stable responses in compositionally-graded ferroelectrics

• Streamlined approach to mapping the magnetic induction of skyrmionic materials

• Optimizing disk registration algorithms for nanobeam electron diffraction strain mapping

• Electron ptychographic phase imaging of light elements in crystalline materials using Wigner distribution deconvolution

• Non-spectroscopic composition measurements of SrTiO₃-La$_{0.7}$Sr$_{0.3}$MnO₃ multilayers using scanning convergent beam electron diffraction

• Deciphering chemical order/disorder and material properties at the single-atom level

2016 (12)¶

• Automatic software correction of residual aberrations in reconstructed HRTEM exit waves of crystalline samples

• Characterization of Ordering in A-Site Deficient Perovskite Ca_1-xLa$_{2x/3}$TiO₃ Using STEM/EELS

• Atomic scale imaging of competing polar states in a Ruddlesden-Popper layered oxide

• Enhanced phase contrast transfer using ptychography combined with a pre-specimen phase plate in a scanning transmission electron microscope

• Orientation mapping of semicrystalline polymers using scanning electron nanobeam diffraction

• A Generalized Read-Shockley Model and Large Scale Simulations for the Energy and Structure of Graphene Grain Boundaries

• Demonstration of hexagonal phase silicon carbide nanowire arrays with vertical alignment

• Nanomaterial datasets to advance tomography in scanning transmission electron microscopy

• Step Coalescence by Collective Motion at an Incommensurate Grain Boundary

• Efficient linear phase contrast in STEM with MIDI

• Correcting nonlinear drift distortion of SPM and STEM from image pairs with orthogonal scan directions

• Identifying different stacking sequences in few-layer {CVD}-grown {MoS}₂ by low-energy atomic-resolution scanning transmission electron microscopy

2015 (7)¶

• Large-scale experimental and theoretical study of graphene grain boundary structures

• Three-dimensional positions of individual atoms in materials revealed by electron tomography

• Unravelling structural ambiguities in lithium-and manganese-rich transition metal oxides

• Strain mapping at nanometer resolution using advanced nano-beam electron diffraction

• Surface determination through atomically resolved secondary-electron imaging

• Atomic defects in two dimensional materials

• Analysis of grain boundary dynamics using event detection and cumulative averaging

2014 (3)¶

• Conserved atomic bonding sequences and strain organization of graphene grain boundaries

• HAADF imaging of the omega (ω) phase in a gum metal-related alloy

• Direct Observation of a long-lived single-atom catalyst chiseling atomic structures in graphene

2013 (7)¶

• Measurement of the intrinsic strength of crystalline and polycrystalline graphene

• Momentum-resolved electronic structure at a buried interface from soft X-ray standing-wave angle-resolved photoemission

• Interface lattice displacement measurement to 1pm by geometric phase analysis on aberration-corrected HAADF STEM images

• Atomic structure characterization of an incommensurate grain boundary

• Structure and phase transitions at the interface between α-Al₂O₃ and Pt

• Tensile behavior of Al_1-xMo_x crystalline and amorphous thin films

• Direct atomic imaging of antiphase boundaries and orthotwins in orientation-patterned GaAs

2012 (2)¶

• Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au

• Guidelines for quantitative reconstruction of complex exit waves in HRTEM

2011 (1)¶

• Highly monodisperse core--shell particles created by solid-state reactions

2010 (5)¶

• A systematic neutron reflectometry study on hydrogen absorption in thin Mg_1-xAl_x alloy films

• The role of self-shadowing on growth and scaling laws of faceted polycrystalline thin films

• Solid-state dewetting mechanisms of ultrathin Ni films revealed by combining in-situ time-resolved differential reflectometry monitoring and atomic force microscopy

• Hydrogen storage in binary and ternary Mg-based alloys: A comprehensive experimental study

• Analytic description of competitive grain growth

2009 (5)¶

• All-metal AFM probes fabricated from microstructurally tailored Cu-Hf thin films

• Nanocrystalline-amorphous transitions in Al-Mo thin films: Bulk and surface evolution

• Low temperature hydrogen desorption in MgAl thin films achieved by using a nanoscale Ta/Pd bilayer catalyst

• Simulations of faceted polycrystalline thin films: asymptotic analysis

• Structural changes of thin MgAl films during hydrogen desorption

2008 (4)¶

• Tailoring the microstructure and surface morphology of metal thin films for nanoelectromechanical systems applications

• Resonance properties and microstructure of ultracompliant metallic nanoelectromechanical systems resonators synthesized from Al-32 at.% Mo amorphous-nanocrystalline metallic composites

• Neutron reflectometry study of hydrogen desorption in destabilized MgAl alloy thin films

• Transmission electron microscopy and nanoindentation study of the weld zone microstructure of diode-laser-joined automotive transformation-induced plasticity steel

2007 (1)¶

• Synthesis and characterization of Au-Ta nanocomposites for nanomechanical cantilever devices

2006 (1)¶

• Metallic NEMS components fabricated from nanocomposite Al-Mo films